Finding the Fourth Proportional to 187,787.80, 281,163.30 and 146,315.80
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Solution
The fourth proportional to 187,787.80, 281,163.30 and 146,315.80 is: 219,069.79
Step by Step Solution
- Step 1: Write the proportion equation
187,787.80 : 281,163.30 = 146,315.80 : x - Step 2: Convert to fraction form
187,787.80/281,163.30 = 146,315.80/x - Step 3: Cross multiply
187,787.80x = 281,163.30 × 146,315.80 - Step 4: Simplify right side
187,787.80x = 41,138,633,170.14 - Step 5: Solve for x
x = 41,138,633,170.14/187,787.80 - Step 6: Final answer
x = 219,069.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.